Quickset 64

I have a problem with quickset on my XPS 15? Can you help? I have Quickset 64 installed on my laptop (C:program files/Dell/Quickset) but i have no taskbar icon in my icon tray so i cant turn on/off the on screen wifi icon, the on screen volume icon & also the on screen display brightness icon which are activated using the Fn + hot keys? When i activate quickset by pressing the touch key with the 2 cogs on or actually going into the quickset program folder & clicking on quickset in there the windows mobility centre comes on screen but no quickset icon in the taskbar. Please help!

I did say in my post that i already have Dell Quickset 64 installed in the program files & yes i have uninstalled it & re-installed it but still no taskbar icon! Also, is there a service manual PDF file link that yo can give me as the only link i have is for the HTML version which you need to constantly go on Dells website to view it. I would like a PDF file to view offline. Thanks.

I'm not sure. i wasnt aware that you could turn the on screen wifi, volume & brightness icons on/off until i read online about it but i have no QS icon in my taskbar so it may have been like this since day 1. Windows 7 has been re-installed using the Dell Windows installation disc. The icon is in the notification area icons settings in the control panel but when i select it to 'Show icons & notifications' it says that the icon is not in use & will appear next time it becomes active but when i click on quickset & the mobility centre comes up there's still no icon in the taskbar.